The problem
Mercedes-Benz USA, LLC. (MBUSA) is recalling certain model year 2015 S550 Hybrid vehicles manufactured April 24, 2015, to June 12, 2015. The affected vehicles are equipped with a high voltage onboard charger that may not have been built to specification, and as a result, the charging function for an external charging cable might not function and the onboard charger may incorrectly detect a charging cable, even while the vehicle is being driven.
The risk
If the charging cable is incorrectly detected and the vehicle is stopped or moving at a very slow speed, the vehicle may unexpectedly shift to park, increasing the risk of a crash.
The fix
MBUSA will notify owners, and dealers will replace the onboard charger, free of charge. The recall began on January 27, 2016. Owners may contact MBUSA customer service at 1-800-367-6372.
Recall details
| NHTSA campaign | 15V-796 (15V796000) |
|---|---|
| Manufacturer number | 2015120002 |
| Manufacturer | Mercedes-Benz USA, LLC |
| Component | Hybrid propulsion system |
| Report date | November 24, 2015 |
| Owners notified | January 27, 2016 |
| Vehicles affected | 52 |
| Initiated by | Manufacturer |
Vehicles covered
Frequently asked questions
Is the recall 15V-796 repair free?
Yes. Mercedes-Benz dealers will fix the problem at no cost: MBUSA will notify owners, and dealers will replace the onboard charger, free of charge. The recall began on January 27, 2016. Owners may contact MBUSA customer service at 1-800-367-6372.
How do I know if my car is included?
Not every vehicle of the listed model years is affected — the recall covers 52 vehicles built in a certain window. Check your 17-character VIN with our VIN recall check or at nhtsa.gov/recalls.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.